Sorry guys you seam to miss my point. I have no trouble in the 109 cockpit. The displays are quite easy to read even though their computer generated and all measurements are metric. The Spitfire is far less easy to read and written in imperial.
Now in real life the dashboard instruments would be much easier to read. Also all the different standards of measurement mean the same thing,so it can't be considered a cheat if I had the choice of measurement.
After all German ground control messages are written in english right in my line of sight in easy to read contrasting colors. So would it not be a big ask to either have a heads up display of critical measurements such as speed and height or even better have the choice to have metric or imperial on the actual gauges.
Some will say it's not historically correct and that fair enough. If they find it ruins the game for them they don't enable the featcher. For me having a conversion table on a piece of paper stuck to my desk is much more of a buzz kill. I know if I was a German pilot that defected to the allies(I'd be shot

)I'd have vital speeds painted next to on my new Spitfires gauges.